*{
    margin: 0;
    padding: 0;
}
/* 头部 */
header{
    height: 100px;
    overflow: hidden;
}
header .wrapper{
    width: 1366px;
    height: 42px;
    margin: 24px auto;
}
header .logo{
    float: left;
}
header .nav{
    float: left;
    height: 42px;
    margin-left: 50px;
}
header .nav ul{
    list-style: none;
}
header .nav li{
    float: left;
}
header .nav li a{
    display: block;
    padding: 0 10px;
    height: 30px;
}
header .nav li a:hover{
    border-bottom: 2px solid #00a4ff;
}
a{
    text-decoration: none;
    color: #050505; 
}
input{
    border: 0;
    box-sizing: border-box;
}
header .search{
    position: relative;
    width: 410px;
    height: 38px;
    float: left; 
    margin-left: 140px;
}
header .search input.box{
    width: 410px;
    height: 38px;
    padding-left: 10px;border: 2px solid #00a4ff; 
}
header .search input.commit{
    position: absolute;
    top: 0;
    right: -16px;
    width: 50px;
    height: 38px;
    background: #00a4ff url(../images/search_06.png) center center no-repeat;
    list-style: none;
}
header .profile{
    float: right;
    height: 42px;
    line-height: 42px;
    margin: 0 15px 0 35px;
}
header .profile img{
    margin: 0 15px;
}
/* banner部分 */
.banner{
    height: 420px;
    background-color: #1c036c;
}
.banner .container{
    height: 420px ;
    background: url(../images/banner_03.png) no-repeat center center;
    margin-left: 147.5px;
    margin-right: 147.5px;
}
/* 左侧导航 */
.banner .subnav{
    float: left;
    height: 420px;
    width: 190px;
    background-color: rgba(0, 0, 0, 0.3);
}
.banner .subnav ul{
    list-style: none;
}
.banner .subnav li{
    height: 45px;
    line-height: 45px;
    padding: 0 20px;
}
.banner .subnav li a{
    font-size: 14px;
    color: #fff;
}
.banner .subnav li a:hover{
    color:blue;
}
.banner .subnav li a span{
    float: right;
}
/* 课程 */
.banner .course{
    float: right;
    width: 230px;
    height: 350px;
    margin-top: 50px;
    background: #fff;
}
.banner .course h2{
    height: 48px;
    background-color: #6bceea;
    text-align: center;
    line-height: 48px;
    font-size: 18px;
    color: #fff;
    margin: 0;
}
.course .content ul{
    list-style: none;
    margin: 0;
    padding-left: 22px;
}
.course .content ul li{
    border-bottom: 1px solid #ccc;
    padding: 17px 0;
    width: 190px;
    height: 40px;
}
.course .content ul li h4{
    font-size: 16px;
    color: #4e4e4e;
    margin: 0;
}
.course .content ul li p{
    font-size: 14px;
    color: #a5a5a5;
    margin: 0;
}
.course .content ul li:last-child{
    border-bottom: none;
}
.course .content a.more{
    display: block;
    margin: 5px 0 0 18px;
    border: 1px solid #00a4ff;
    height: 38px;
    line-height: 38px;
    font-weight: bolder;
    text-align: center;
    color: #00a4ff;
    width: 188px;
}
/* 轮播圆点
.banner .circle{
    width: 180px;
    height: 22px;
    position: absolute;
    bottom: 10px;
    left: 50%;
    margin-left: -90px;
    list-style: none;
}
.banner .circle .current{
    width: 19px;
    border-radius: 5px;
    background-color: #fff;
}
.banner .circle .current li{
    float:left ;
    height: 12px;
    background: rgba(255, 255, 255, 0.4);
    margin: 6px 8px;
} */
 /* 精品推荐 */
 .recommend{
    height: 60px;
    line-height: 60px;
    background-color: #fff;
    margin-top: 8px;
    box-shadow: 0 2px 2px rgba(0, 0, 0, 0.2);
 }
 .containe{
    width: 1200px;
    margin: 0 auto;
 }
 .recommend a:first-child{
    color: #00a4ff;
 }
 .recommend a{
    padding: 0 30px;
    border-right: 1px solid #ccc;
 }
 .recommend a:hover{
    color: #00a4ff;
 }
 .recommend a:last-child{
    color: #00a4ff;
    border: 0;
    float: right;
    font-size: 14px;
 }
 /* 推荐 */
 .recommed-couser{
    margin-top: 35px;
 }
 .recommed-hd{
    height: 40px;
 }
 .recommed-hd h4{
    float: left;
    color: #494949;
 }
 .recommed-hd a{
    float: right;
    margin-top: 10px;
    margin-right: 30px;
    font-size: 14px;
    color: #a5a5a5;
 }
.recommed-bd ul{
    list-style: none;
    padding: 0;
}
.recommed-bd ul li{
    width: 228px;
    height: 270px;
    background-color:#fff;
    box-shadow: 0 4px 5px rgba(0, 0, 0, 0.2);
    float: left;
    margin-right: 15px;
    margin-top: 15px;
}
.recommed-bd ul li:nth-child(5n){
    margin-right: 0;
}
.recommed-bd ul li img{
    width: 228px;
}
.recommed-bd ul li h5{
    font-size: 14px;
    line-height: 22px;
    font-weight: normal;
    padding: 0 20px 0 24px;
    margin-top: 12px
}
.recommed-bd ul li p{
    font-size: 12px;
    color: #999;
    padding: 0 20px 0 24px;
    margin-top: 12px
}
.recommed-bd ul li p span{
    color: #ff7c2d;
}
/* 编程入门 */
.program{
    margin-top: 35px;
}
.program-hd h4{
    float: left;
    color: #494949;
    margin-right: 352px;
}
.program-hd ul{
    list-style: none;
}
.program-hd ul li{
    float: left;
    font-size: 16px;
    padding: 0 36px;
}
.program-hd li a{
    color: #a7a8a9;
}
.program-hd li a:hover{
    color: #00A4FF ;
}
.program-hd a{
    float: right;
    margin-top: 10px;
    margin-right: 30px;
    font-size: 14px;
    color: #a5a5a5;
}
.program-bd .program-bd-l{
    float: left;
    margin-right: 15px;
}
.program-bd .program-bd-r-bottem ul{
    list-style: none;
}
.program-bd .program-bd-r-bottem ul li{
    width: 228px;
    height: 270px;
    background-color: #fff;
    overflow: hidden;
    box-shadow: 0 4px 5px rgba(0, 0, 0, 0.2);
    float: left;
    margin-right: 15px;
    margin-top: 15px;
}
.program-bd .program-bd-r-bottem ul li:nth-child(4){
    margin-right: 0;
}
.program-bd .program-bd-r-bottem h5{
    font-size: 14px;
    line-height: 22px;
    font-weight: normal;
    padding: 0 20px 0 24px;
    margin-top: 12px;
}
.program-bd .program-bd-r-bottem p{
    font-size: 12px;
    color: #999;
    padding: 0 20px 0 24px;
    margin-top: 12px;
}
.program-bd .program-bd-r-bottem p span{
    color: #ff7c2d;
}
/* footer模块 */
.fotter{
    height: 418px;
    background-color: #fff;
}
.fotter .w{
    float: left;
    margin:25px 0;
    padding: 0;
}
.fotter .copyright{
    float: left;
}
.fotter .copyright p{
    font-size: 12px;
    color: #666666;
    margin: 25px 0 15px 0;
}
.fotter .copyright .app{
    display: block;
    width: 117px;
    height: 33px;
    font-size: 16px;
    color: #00a4ff;
    line-height: 33px;
    text-align: center;
    border: 1px solid #00a4ff;
}
.fotter .links{
    float: right;
    margin-left: 210px;
}
.links dl{
    float: right;
    margin-left: 100px;
}
.links dl dt{
    font-size: 16px;
    color: #333333;
    margin-bottom: 10px;
}
.links dl dd a{
    font-size: 12px;
    color: #333333;
}